package demo4;

/**
 * @program: java-generic
 * @description: 实现类不是泛型类，接口要明确数据类型
 * @author: bjc
 * @create: 2021-08-15 15:17
 */
public class Apple implements Generator<String> {
    @Override
    public String getKey() {
        return "hello generic";
    }
}
